Hills flashed in bluewhite light and vanished, now a white sky over jagged black skyline, now a look into the canyon on his left, now blackness lit only by the headlamps of cars, now a nearby blast that clenched Randall's eyelids in pain.

Dr. Kamblin and I are in agreement that the sun involved is somewhat less promising than the bluewhite star we last hit was, and there don't seem to be any evident astronomical reasons for the computeA having sounded the alarm at all.